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Nephrology & Renal Medicine

Absorptive Hypercalciuria

ICD-10 Code
E83.52

Increased intestinal absorption of calcium leading to high urinary calcium and stone formation. Blood calcium and PTH are typically NORMAL.

Clinical Presentation & Protocol

Patient Usually Complains Of

Patient presents with recurrent nephrolithiasis. 24-hour urine collection confirms hypercalciuria with normal serum calcium and PTH levels, consistent with absorptive hypercalciuria. Denies excessive vitamin D intake or immobilization. Reports dietary calcium intake within normal limits.

Clinical Examination Findings

Patient is alert and oriented. No signs of acute distress. Normotensive. No palpable masses or organomegaly. No signs of metabolic bone disease or skeletal deformities.

Treatment Protocol

Initiate low-sodium diet (<2g/day) to reduce renal calcium excretion. Maintain adequate fluid intake (>2.5L/day) to ensure urine volume >2L/day. Consider thiazide diuretics if hypercalciuria persists despite dietary modifications. Avoid excessive dietary protein.

Detailed clinical guide coming soon.